var the = document.getElementById("mei");
console.log(the);
var a = false; //a鼠标移到thefood上为false
var thefood = document.getElementById("food");
the.onmouseover = function() {
	//美食与营养div
	thefood.style.display = "block";
}
the.onmouseleave = function() {
	if(a == false) {
		thefood.onmouseover = function() {
			thefood.style.display = "block"
		}
	}

	thefood.style.display = "none"
}
thefood.onmouseleave = function() {
	thefood.style.display = "none"
}
